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Love the idea of planters for base of front porch railing. Do this for herbs and do flowers above and in planters around front porch=nice fragrant front sitting area+easy access to outdoor herb garden rather than side yard for herbs.
Self-watering planter made from recycled bottles. (I'd want to try this with a 2-liter plastic bottle, and cut the top off, so I could get the root system out intact for transplants.)